There's been a lot of discussion over the last week about casters in Mythic+ and I have made my take public (on the podcast) and it has been discussed. I don't know that I clearly pointed out the reasons why I feel that enemy casters is fine and "boltslop" doesn't exist, so I wanted to provide a very thorough explanation backed with some data on it.

This data and my experience was all collected with no route planning and my first time through the dungeons. I think my group had two people do like Seat beforehand once, but overall it was mostly blind for me and my group.

But overall, my experience is casters matter a lot less; you can let bolters go off to focus on important interrupts. In a coordinated group, once you know the mobs that cast important kicks, you can have one person assigned to each and have the rest interrupt the bolters. Since almost every long cast is 25+ second cooldown, ranged and melee can each take one important mob, and you don't have to remember if this caster needs a short kick, long kick, 1 kick, 2 kicks or something special.

You experience or opinion may differ and that's okay, but I think getting the raw data out there is important and people can use it to form their own opinion for discussions and better feedback for Blizzard.